Steam-radiator



(No Model.)

T. L. MQKEEN.

STEAM RADIATOR.

No. 325,554. Patented Sept. 1, 1885.

INVENTOR- ATTORNEYS.

WITNESSES film/ tries.

PATENT THOMAS L. MGKEEN, OF EASTON, PENNSYLVANIA.

STEAM-RADIATOR.

SPECIFICATION forming part of Letters Patent No. 325.554, dated September 1, 1885.

Application filed April 6, 1885.

To all whom it may concern:

Be it known that I, THOMA$ L. MoKnEN, a citizen of the United States, and a resident of Easton, in the county of Northampton and State of Pennsylvania, have invented certain new and useful Improvements in Steam-Radiators; and I do hereby declare that the foL lowing is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a perspective view of my improved valve for steamradiators, and Fig. 2 is a vertical sectional view showing the same in position for operation.

The same letters refer to the same parts in both the figures.

This invention relates to that class of valves for steam-radiators which are operated automatically by the admission of steam into the radiator; and it has for its object to provide a device of this class which shall possess superior advantages in pointof simplicity, durability, and general efficiency.

The invention consists, specifically, in the arrangement within one of the steanrpipes of a perforated diaphragm, in which is mounted a rod carrying a valve, which is moved to or from its seat by the expansion or contraction of the said rod, and in the particular construction and arrangement of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, A designates a section of steam-pipe the lower end of which is screw-threaded, as shown at B, so as to be readily attached to the radiator, and provided with a perforated diaphragm, 13, admitting of the passage of steam. The said diaphragm is provided with a central screwt-hreaded perforation, O, in which is mounted a screw-threaded rod, 1), near the upper end of which is formed a valve, E, a seat for which is formed at F in the under side of a screwthreaded plug, G, which is seen red in the upper end of the pipe A. The said plug has a perforation, G, for the passage of the valverod, the upper end of which is'formed with a (No model.)

post or key-seat, H, to enable it to be conveniently manipulated by the application of an ordinary key or wrench.

I is a cap mounted upon the upper or outer end of the plug G, and having an opening, J, into which a drip-pipe may be inserted, and a removable plug, K, affording access to the key-seat H of the valve-rod.

The operation of this invention and its advantages will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed.

The construction is simple in the extreme, and hence very inexpensive, and not liable to get out of order. When the radiator is hot, the valve is to be screwed to its seat, thereby closing the steam-pipe. When the steam supply is cut off and the radiator cools, the valverod contracts, thus opening the valve and admitting cold air. \Vhen steam is admitted, the valve is by the reverse action closed, so as to prevent leakage.

The valve may be readily reached and manipulated by simply removing the plug K when it shall be desired to permit steam to escape.

I am aware that it is not new to construct automatic closing valves for steam-radiators in which the expansibility of metal is utilized to operate the valve, and I do not claim such construct-ion, broadly; but

I claim and desire to secure by Letters Patent of the United States 1. In a valve for steam-radiators, the combination, with the radiating-pipe, of a perfo rated plug at its upper end forming a valveseat, said plug having a shoulder near its central part and being sore w-threaded above and below said shoulder, a rod adj ustably secured to the bottom of 'said pipe, the upper end of which is provided with a valve fitting said perforated plug and having a post passing through said perforation, a cap fitting said plug above said shoulder and provided with a perforation at one side and a perforation in the top above said post on said rod, and means for closing said top perforation, substantially as and for the purpose set forth.

2. In a valve for steam-radiators, the combination,with the radiating-pipe provided with a perforated plug at its upper part, and In testimony that I claim the foregoing as a valve-rod adj nstably secured to the bottom my own I have hereunto afixed my signature of said pipe, of a cap scoured to the top of said in presence of two witnesses.

perforated plug, having an opening in its side THOMAS L. MOKEEN. 5 and an opening in the top, and a plug fitting WVitnesseS:

in said top opening, substantially as and for JOHN S. N 013L13 the purpose set forth. S. S. FIsnER. 

